What would you enter if you wanted to perform a stealth scan using Nmap?

The `nmap -sM` option is not a recognized or standard Nmap scan type.

The `nmap -sU` option performs a UDP scan, which targets UDP ports and is not considered a stealthy TCP scan.

The `nmap -sS` command performs a TCP SYN scan, also known as a 'stealth scan' or 'half-open scan.' This method sends a SYN packet and waits for a SYN/ACK (indicating an open port) or RST (indicating a closed port) without completing the three-way handshake, making it less likely to be logged by the target system than a full TCP connect scan.

The `nmap -sT` option performs a TCP connect scan, which completes the full three-way handshake, making it easily detectable and loggable by the target system and thus not considered stealthy.